package com.lwt.interceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
public class AuthorityInterceptor implements HandlerInterceptor{

	@Override
	public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
			throws Exception {
		 //请求的路径
        String contextPath=request.getContextPath();
        String  url=request.getServletPath().toString();
		Object o=request.getSession().getAttribute("loginuser");
		if(o!=null){
			return true;
		}else{
			//被拦截，重定向到login界面
			System.out.println("被拦截，重定向到login界面");
			response.sendRedirect(contextPath+"/login.ftl");
			return false;	
		}
	}

	@Override
	public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
			ModelAndView modelAndView) throws Exception {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)
			throws Exception {
		// TODO Auto-generated method stub
		
	}

}
